Empty variables as parameters cause no window to be drawn on dialog test build 3.0.0.4812

[BigMacAdmin]

Describe the bug On build 3.0.0.4812 a command that includes an empty argument causes dialog to hang and not draw a window

To Reproduce

unset testVar
/usr/local/bin/dialog --title "test" "$testVar"

or

testVar=''
/usr/local/bin/dialog --title "test" "$testVar"

Same if we use testVar= as well. Because "$testVar" is wrapped in quotes, as discussed on slack, dialog is seeing this as an empty argument that does not start with a - and so is not being processed properly

Expected behavior Previous versions ignored these empty arguments, and if we could regain that behavior this would be much appreciated

Screenshots n/a

Desktop (please complete the following information):

• macOS version 26.0RC1
• swiftDialog version 3.0.0.4812

Additional context This affects Renew and may also affect Baseline (need more testing)

[bartreardon]

There are some limitations with regard to how SwiftUI build with Xcode 16 or later behave that will be difficult to get around, however I can look at /usr/local/bin/dialog and have it discard null or empty arguments.

[BigMacAdmin]

I've made improvements to Renew to get around this problem, so if you don't plan to fix it feel free to close this issue.